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No exploitation reported

CVE-2019-5152

No exploitation reported by the sources we read.

  • Published2019-12-18
  • WeaknessCWE-306

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.

Timeline

dates in UTC
  1. 2019-12-1815:15CVE publishedNVD

Versions per branch

NVD
Shadowsocks shadowsocks-libev
BranchAffectedFixed in
3.3= 3.3.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • shadowsocks-libevUbuntu:26.10all versions · no fixed version listed
  • shadowsocks-libevUbuntu:26.04:LTSall versions · no fixed version listed
  • shadowsocks-libevUbuntu:25.10all versions · no fixed version listed
  • shadowsocks-libevUbuntu:24.04:LTSall versions · no fixed version listed
  • shadowsocks-libevUbuntu:22.04:LTSall versions · no fixed version listed
  • shadowsocks-libevUbuntu:20.04:LTSall versions · no fixed version listed
  • shadowsocks-libevUbuntu:18.04:LTSall versions · no fixed version listed
  • shadowsocks-libevDebian:13all versions · no fixed version listed

1 more package range on OSV.dev

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.17.4read 2026-10-23
  • CNACVSS 3.07.4known since 2026-10-23
  • NVDCVSS 2.05.8read 2026-10-23
  • CNAweakness (CWE)CWE-306known since 2026-10-23
  • NVDweakness (CWE)CWE-306read 2026-10-23
  • FIRST EPSSEPSS score1.4 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
2019-12-18
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-pmr7-f238-jxqj

Frequently asked questions

What is CVE-2019-5152?

An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.

Is CVE-2019-5152 actively exploited?

Active exploitation of CVE-2019-5152 has not been confirmed. Its EPSS score was 1.4% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-5152?

CVE-2019-5152 has a CVSS v3 base score of 7.4 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

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